TROUBLESHOOTING Operator Details – Double Reduction 103DR 103-2 BALANCE ALIGNMENT BALANCING 107 SPRING REPLACEMENT 117 SPRING REPLACEMENT 117DR LEESON MOTOR INSTALLATION Liftmaster Wire Dia. # 113 Double Reduction LOWER Assy. 152 Double Reduction UPPER Assy. 153 24-Volt-TROUBLE SHOOTING TIPS UPPER ASSEMBLY DRAWING (2007 STYLE)